Details
Originalsprache | Englisch |
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Titel des Sammelwerks | Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics |
Herausgeber (Verlag) | International Society for Horticultural Science |
Seiten | 95-96 |
Seitenumfang | 2 |
ISBN (Print) | 978-94-62614-11-6 |
Publikationsstatus | Veröffentlicht - 30 Okt. 2024 |
Publikationsreihe
Name | Acta Horticulturae |
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Herausgeber (Verlag) | International Society for Horticultural Science |
Band | 1412 |
ISSN (Print) | 0567-7572 |
Abstract
The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius Kühn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata ‘Jackii’ and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata ‘Jackii’. This indicates that the resistance mechanism observed in Malus baccata ‘Jackii’ is not restricted to the cuticle.
ASJC Scopus Sachgebiete
- Agrar- und Biowissenschaften (insg.)
- Gartenbau
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Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics. International Society for Horticultural Science, 2024. S. 95-96 (Acta Horticulturae; Band 1412).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Investigation on apple blotch resistance of Malus baccata 'Jackii'
AU - Pfeifer, M.
AU - Richter, S.
AU - Wohner, T.
AU - Peil, A.
AU - Knoche, M.
AU - Flachowsky, H.
N1 - Publisher Copyright: © 2024 International Society for Horticultural Science. All rights reserved.
PY - 2024/10/30
Y1 - 2024/10/30
N2 - The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius Kühn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata ‘Jackii’ and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata ‘Jackii’. This indicates that the resistance mechanism observed in Malus baccata ‘Jackii’ is not restricted to the cuticle.
AB - The fungal pathogen Diplocarpon coronariae causes apple blotch and has rapidly spread throughout Europe in recent years. The most sustainable approach to control this disease is breeding cultivars that exhibit high tolerance or resistance to it. Screenings of the Malus germplasm collection from the Fruit Genebank of the Julius Kühn Institute showed that an accession from Malus baccata is resistant to Diplocarpon coronariae. In this study, Malus baccata ‘Jackii’ and two susceptible genotypes were artificially inoculated and evaluated for their resistance to apple blotch in a detached leaf assay. The phenotypic evaluation revealed a difference in the number of necrotic spots among the genotypes. Additionally, after abrading the cuticle with silicon carbide, a higher amount of Diplocarpon coronariae-specific DNA was detectable in the susceptible cultivars compared to Malus baccata ‘Jackii’. This indicates that the resistance mechanism observed in Malus baccata ‘Jackii’ is not restricted to the cuticle.
KW - Diplocarpon coronariae
KW - inoculation
KW - Malus wild species
KW - Marssonina coronaria
KW - phenotyping
KW - qPCR
KW - resistance breeding
UR - http://www.scopus.com/inward/record.url?scp=85213388901&partnerID=8YFLogxK
U2 - 10.17660/ActaHortic.2024.1412.14
DO - 10.17660/ActaHortic.2024.1412.14
M3 - Conference contribution
AN - SCOPUS:85213388901
SN - 978-94-62614-11-6
T3 - Acta Horticulturae
SP - 95
EP - 96
BT - Proceedings of the XVI EUCARPIA Symposium on Fruit Breeding and Genetics
PB - International Society for Horticultural Science
ER -